Attic Insulation Levels

In general to optimally isolate an attic on average an r value of the insulation is required ranging from r 50 to r 60.

Attic insulation levels.

Affix rigid foam insulation to the attic side of the hatch or door. The higher the r value the better the thermal performance of the insulation. Attic hatch or door. R value is a measure of insulation s ability to resist heat flow.

Insulation materials run the gamut from bulky fiber materials such as fiberglass rock and slag wool cellulose and natural fibers to rigid foam boards to sleek foils. Inspecting your attic insulation. Bulky materials resist conductive and to a lesser degree convective heat flow in a building cavity. What thickness of the recommended insulation will i need to achieve the required u value 0 16w m2k for ceiling level insulation 0 20w m2k for rafter level insulation.

The insulation levels of an attic or of any part of a house are understood through the r value that is the value with which the insulating material is resistant to heat flow. Why are other types less suitable. The higher the r value the better the thermal performance of the insulation. The table below shows what levels of insulation are cost effective for different climates and locations in the home.

Pull down stair or ladder. Level up insulation is a professional insulation installation company in beverly hills and we offer a wide range of services including insulation installation replacement and removal as well as crawl space and attic insulation. Add the right kind of insulation. Insulation levels are specified by r value.

If i were to build another home i d invest in even better insulation. What type of attic insulation would you recommend. The floor limits the cellulose to a depth of 12 inches in some places. Add weatherstripping around the perimeter and a sweep to the door of a walk up attic.

Cellulose insulation has an r value of approximately 3 to 3 5 per inch. Rigid foam boards trap air or another gas to resist conductive heat flow. If i need storage space in my attic where is the best place. Insulation level are specified by r value.

The depth varies quite a bit because we have attic trusses and a floor in the attic. First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation. R value is a measure of insulation s ability to resist heat traveling through it. Use a zippered insulated tent to keep the enclosure draft free attic tent at 7 attic cover insulator 120.

These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation. So we have between r36 and r56 in the attic.